Bekth



W. I'Vl. FULBERTH.

WINDSHIELD CLEANER.

APPLICATION msn SEPT. 1a. :922.

15,502. 3 SHEETS-SHEET l.

Reissued Dec. 5, 1922.

W. M. FULBERTH.

wmnsmnn CLEANER.

APPLICATION FILED SETr 13| |922. Reissud Dec. 5, 1922. 15,502.

`3 SHEETS-SHEET 2.

W. M. FOLBERTH. WINDSHIELD CLEANER. APPLICATION FILED SEPT. la, 1922.

Reissued Dec. 5, 1922.

Reissued Dec. 5, 1922.

UNITED STATES PATENT OFFICE.

WILLIAM M. FOLBERTH, oF'LEvLAND, OHIO, ASSIGN'OR TO THE FOLBERTH AUTOSPECIALTY COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

WINDSHIELD CLEANER.

Original No. 1,424,890, dated August 8, 1922, Serial No. 348,175, ledDecember 29, 1919. Application for reissue iled September 18, 1922.Serial No. 589,000.

of an automatically operated fluid motor for the urpose of continuouslyoperating a win shield cleaner when desired.

A further object of the invention is the provision of valve mechanismwhereby the valves will be retained in one position under tension untilthe piston or movable member in the motor travels a predetermineddistance in one direction when a definige, force will be applied to thevalve to niovexit to a second position.

A kfurther object of the invention is the provision of a motor having arelatively large opening therein and a closure -plate for said motor,said closure plate being provided with valve mechanism arranged on theinner side thereof, whereby the valve mechanism will be readilyaccessible when the closure plate is removed.

In the present application, I have also disclosed a windshield cleanerhaving a motor which is adapted to be placed inter-iorlv of thewindshield, and is provided with means for operating the cleaner elementdisposed exteriorly of the windshield. This construction, whiledisclosed in the present application, forms the subject matter of adivisonal application, filed March 11. 1922, Serial No. 543,063.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings, wherein for the purpose of illustration isshown a preferred embodiment of my invention and wherein like numeralsdesignate like parts throughout,

Figure 1 is a perspective view of my windshield cleaner attached to thewindshield of an automobile,

Figure 2 is a transverse sectional view on line 2-2 of Figure 1,

Figure 3 is a longitudinal sectional view on line 3 3 of Figure 1,

Figure 4 is an enlarged fragmentary longitudinal sectional view similarto that shown in Figure 3,

Figure 5 is a transverse sectional view taken on line 5 5 of Figure 4,

Figure 6 is a combined perspective view of the plates forming a portionof the valve operating mechanism,

Figure 7 is a perspective view of the valve operating lever,

Figure 8 is an enlarged longitudinal sectional view taken on a line atright angles to Figure 4, y,

Figure 9 is a similar view of the opposite end of the cylinder on thesame line, and,

Figures 10, 11, 12 and 13 show modified forms of attaching brackets bymeans of which the cylinder may be secured to windshields of differentconstruction.

Referring now more particularly to the drawings, the reference numeral10 designates a cylinder provided upon one side with angular shoulders11. These shoulders 1l receive corresponding angular ears 12`r formedupon one side 1-1 of the bracket 13.

The bracket 13 comprises in general a U- shaped member, the oppositesides 1-1 and 15 of which are adapted to be disposed upon opposite sidesof a suitable support, such as framing 16 which holds the windshieldglass 17 in position. The bracket may be held against shifting withrelation to the framing 16 by means of retaining screws 13 or the like.

Tn the forms shown in Figures 10 and 11, the bracket retainssubstantially the same form as that shownfin Figures 1 and 2, with theexception of the fact that the `base of the U is somewhat rounded. Itwill be obvious that in some makes of cars, it is not desirable 'to havethe operating shaft of ,the cleaner extend above the upper surfacesofthe framing 16. ln each of the forms shown ih Figures 10 to 13inclusive, the operating shaft 18 extends through the framing 1G,openings 14 and 15' heilig formed in the arms 14. and l5 of the bracketand opening 16 being formed in the framing 16 of the Windshield. In theforms shown in Figures 12 and 13, this construction is slightly deviatedfrom, in that the bracket has but a single arm 12 which is secured tothe inner side of the `framing 16.

The operating shaft 18 is mounted for oscillation in the cylinder 10 andis provided in its outer end with atransverse bore 19, which receives acleaning bar 20, the bar bef ing held in position in the bore by meansof a set screw 21 or the like. 'The lower end of the cleaner bar 20 isprovided with a cleaniing element holder 22, adapted to receive acleaning element 23. These parts are shown in the present disclosure asbeing similar to those shown and described in my copending applicationSerial No. 325,873, tiled September 24, 1919. The inner end 24 of theshaft 18 extends beyond the inner side of the cylinder l() and isprovided with a transversely disposed operating arm 25 by means of whichthe shaft may be manually oscillated.

Mounted upon the rock shaft 18, within the cylinder 10 is a segmentalgear 26, secured to the rock shaft in any desired manner. Slidablyarranged Within the cylinder are a pair of spaced pistons 27 and 28,connected by a member 29. This member 29 is provided upon one sidethereof with a rack 30, which engages the segmental gear 26 and has alongitudinal bore 31, threaded at 1ts outer end to receive an externallythreaded plug 32 for a purpose hereinafter to apear.

p The ends of the cylinder are closed by removable heads 33 and 34, thehead 34 being provided with an extension 35. A plug 35' is provided,having threaded engagement With the extension 35- and having formedtherein a longitudinal port 36. The longitudinal port 36 communicateswith a transverse port 37 which in turn communicates with the internalbore 38 of a tubular member to Which is attached a conduit 39 con nectedwith a suitable source of suction as, for example, the intake manifold0f the engine or a vacuum tank forming a portion of the fuel feed of theengine. The port 36 is provided with a seat40 which is normally closedby a needle valve 41.

This port communicates With the conduit 43, formed in the extension 35and the conduit 43 in turn communicates with a roove 44 formed in a plug45 having threa ed engagement With the extension of the head 34. Theplug 45 is provided with a longitudinal b ore 46, connected With thegroove 44 by means of a transverse passage 47.

Formed upon opposite ends of the plug 45 are valve seats 48 and 49,adapted to receive valves 50 and 51 respectively, having a common stem52. One end of the passage 46 of the plug 45 communicates with theinterior of the cylinder at the end 53 thereof, and the other onecommunicates with the conduit 54. This conduit 54 in turn communicateswith a conduit 54 extending transversely of the head 34.

The conduit 54 is interrupted by a plugy 55 having an annular groove 56,alining with the conduit. and a central bore 57 formed in the endthereof adjacent the end 53 of the cylinder. The groove 56 and bore 57ofthe plug are connected by means of a passage 58.

Plug 55 is seated in a bore 55 Which extends entirely through theextension 35 and head 34 and is provided upon its inner end With screwthreads to receive an externally threaded plug 59 having a longitudinalbore extending throughout its length, as at 60. The outer end of theplug 59 and the inner end of the plug 55 are each provided with a seat,these seats being designated by the numerals 62 and 63 respectively. Theseats 62 and 63 receive valves 64 and 66 respectively, having a commonstern 67 extending through the bore 60 of the plug 59. The stems 52-and67 of the valves are connected byl a transverse member 68 to operate inunison.

The end of the bore 54 communicates with the bore 69 extending in adirection longitudinally of the cylinder. This bore in turn communicateswith the conduit 76 which opens at the end 71 of the cylinder.

Secured to the inner face of the head 34 is a substantially T-shapedplate 72, having upstanding portions 73 formed at the end of each arm ofthe head of the T. These upstanding portions terminate in portionsparallel to the main body of the plate, as at 74. That portion of theplate forming the stem of the T is also provided with an upstandingportion 85, having a portion 76 at the free end thereof, parallel to andextending over the main body of the member 72. The portions 74 areprovided upon opposite sides thereof with notches 77 and 78 for apurpose presently to appear. The plate 72 may be secured to the head 34in any desired manner. As shown, openings 79 are provided in the plate72 for the reception of screws 8() having threaded engagement with thehead 34.

A yoke 81 is provided comprising a loop portion 82 having the ends ofthe loop outspread, as at 83, and terminating in parallel portions 84,having formed therein notches 85. These parallel portions 84 are spacedapart a distance equal to the distance between the notches 77 of theplate 72. Formed in the opposite sides of the loop portions 82 are pairsof alined openings 86 and 87, for a purpose hereinafter to appear.

A second yoke 88 is provided, having a loop portion similar to that ofthe yoke 81 with the exception of the fact that the arms 89 of the loopare more Widely spaced. The outer ends of the arms 89 of the loopdiverge, as at 90, and terminate in parallel portions 91, spaced apart adistance equal to the distance between the notches 78 of the plate 72.The parallel portions are provided With notches 92, adapted to coactwith the notches 78. Formed in the arms 89 of the yoke 88 is a pair ofalined openings 93, for

a purpose Whlch Will presently appear.

As clearly shown in Figures 3, 4, and 5, the plate 72 is securedto thehead 34 and the yokes 81 and 88 arranged upon opposite sides of theportions 74 thereof with the notches of the yokes engaging the notches77 and 78. A transverse pin 94 extends through the openings 86 of theyoke 81 and a transverse pin 95 extends through the openings 93 of theyoke 88. The pin 94 receives one end 96 of a tension spring 97 ad thepin 95 receives the other end 98 thereof. The openings 87 of the yoke 81receive the transverse member 68 which communicates with the stems 52and 67 of the valves.

An operating lever 99 is provided, having formed upon its end spacedmembers 109` These members are provided with notches 101 to receive thepin 95 upon opposite sides of the end 98 of the spring. The end of thelever 99 adjacent the spaced members 100 is provided with a notch 102 topermit passage of the spring end 98. The lever 99 is reduced as at 103,thus forming shoulders 104 adjacent the end bearing the spaced members100. This reduced portion is of` such size as to slide easily in thebore 105 of the plug 32, but the shoulders 104 cannot enter this bore.The free end ,of the lever 99 is downbent as at 106, to prevent itsWithdrawal through the bore 105 of the plug 32 and it extends Within therecess 31 of the member 29.l

The bore 55 is provided with an opening 107, communicating with theatmosphere. Valve seats 62 and 63 are arranged on op` posite sides ofthis opening.

The operation of the device is as follows:

Then the valves are in the position shown in Figure 8, the end 53 of thecylinder 10 1s in communication with the source of suction throughconduit 39, tubular member 38, passage 37, ports 36 and 40, groove 44,and bore 46. The opposite end 71 of the cylinders 1s in communicationwith the atmosphere through opening 107, bore 55', bore 57, passage 58,groove 56,conduit 54', and conduits 69 and 70. The pistons accordinglymove in a direction toward the end 53 of the cylinder. When the pistonsarrive adjacent the end 53, the plug 32 engages the shoulders 104 of thelever 99 and forces the lever toward the head 34. As soon as the leverhas been moved to a point Where a line drawn through the pins 94 and 95passes between the pivotal point of the yokes and the head 34, the yoke81 is shifted by the spring 97 and the valves are shifted to en age theseats previously disengaged.

Vhen the valves are in this position, the end 71 of the cylinder is incommunication With the source of suction through passage 54, conduit54', and conduits 69 and 70. The end 53 of the cylinder is in communication with the atmosphere through port 107, bore 55', and thelongitudinal bore 60 of the plug 59. W'hen the valves are in thisposition, the pistons 27 and 29 move toward the head 33. Arrivingadjacent the head 33, the downbent end 106 of the lever 99 engagesagainst the inner end of the plug 32 and the yoke 88 is moved away fromthe head 34. As soon as the yoke 88 has been moved sufficiently that aline drawn through the pins 94 and 95 lies beyond the pivot point of theyokes 81 and 88 from the head 34, the spring 97 actuates the yoke 8l andreturns the valves to the position shown in Figure 8.

It `will be seen that the valves are not actuated until they are given apositive thrust by the spring 97 and that consequently these valvescannot assume a position intermediate their seats. There is no movementWhatever ol the yoke 81 until the spring has been brought to such aposition, as the actuation of the yoke is governed by the spring.

In assembling the device, attention is drawn to the construction of thelever 99. This lever can only be inserted into its position by moving itthrough a line nearly parallel with the yoke 88. This is caused by thefact that the spaced portions are of such size that the notches 101retain their grip upon the pin 95, after the lever has been moved backto a position in which it engages against the base of the yoke. lit willbe obvious that this construction lends rapidity of assembly and thatafter the parts Of the device are in assembled position, it isimpossible for the lever 99 to become .accidentally disengaged. Thestructure of the yokes 81 and 88 and the supporting plate 72 thereof isfurthermore of such character as to allow the device to be readilyassembled and disassembled. Attention is called to the fact that thelimiting stop 7 6 for the shifted yoke 88 is formed integrally With thebase plate 72.

It is to be understood that the forms of the invention herewith shownand described are to be taken as preferred examples of the same, andthat various changes in the shape, size, and arrangement of parts may beresorted to Without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, I claim:

1. Valve actuating mechanism for windllO shield cleaners having acylinder, a reciprocating piston, and means for connecting said cylinderto a source of suction, said valve actuating mechanism comprisin ashiftable valve, a pivoted valve.support1ng member, a spring connectedthereto, a second pivoted member, said spring being connected to saidsecond pivoted member, and means actuated by the movement of the pistonfor shifting the end of said spring to opposite sides of the pivot pointof the ivoted supporting member for actuating said valve supportingmember.

Q. In a motor f'or Windshield cleaners, a cylinder. a memberreciprocable therein, means for alternately connecting opposite ends ofthe cylinder to a source of suction comprising a conduit, a valvearranged therein. a member connected thereto, a pivoted yoke connectedto said member, a spring connected at one end to said yoke, a secondpivoted yoke, the opposite end of the spring being connected thereto,and means operated by the movement of the reciprocable member forshifting the second named end of said spring to opposite sides of thepivot point of the first yoke.

3. ln an operating motor for Windshield cleaners, a cylinder, areciprocating piston mounted therein, a valve adapted to alternatelyplace the opposite ends of the cylinder in communication with a sourceof suction, a valve supporting member mounted in said cylinder, saidmember being provided with a pair of parallel arms having offset ends,said offset ends being provided with notches, a member having a pair ofarms, the ends of which are received in said notches to pivotallysupport said member. a spring having one end secured thereto, meansconnected with the free end of said spring for maintaining it undertension, and means operated' by the movement of the piston to shift thefree end of said spring to opposite sides of the pivot point of Vsaidpivoted memlber for actuating the valve supporting memner.

4. ln an operating motor `for windshield cleaners, a cylinder, a memberreciprocable therein, a valve to alternately1 place the opposite ends ofthe cylinder in communication with a source of suction, a supportingmember secured to the cylinder. a yoke pivotally mounted thereon, saidvalve being connected to said yoke, a second` pivoted yoke mounted onsaid supporting member, a spring connected to said yokes, and meansoperated by the movement of the reciprocable member for shifting one endof said spring to opposite sides of the pivot point of the first yokefor actuating Vthe yoke and its associated valve.

5. In an operating motor for Windshield cleaners, a cylinder, areciprocating piston mounted therein, a valve adapted to alternatelyplace the opposite ends of the cylinder in communication with a. sourceof 'suction, a supporting member mounted in said cylinder, said membercomprising a base portion, and a pair of substantially parallel arms,said arms being pro-vided with offset ends, said offset ends beingprovided with oppositely arranged notches, a air of yokes arranged insai dnotches to p1votally support them, the valve being connected to oneof said yokes, a spring connecting said yokes, and means operated by themovement of the piston to shift the second yoke to opposite sides of thepivot point of said yoke `to which the valve is connected.

6. Valve actuating mechanism for Windshield cleancrs having a cylinder,a movable member therein, and means `for connecting said cylinder to asource of suction, said valve actuating mechanism comprising a shiftablevalve, a valve supporting member comprising a pair of pivoted armshaving their pivots arranged adjacent each other and their outer endsremote 'from each other, a tension spring connected to each of said armsadjacent their outer ends, means for operatively connecting said valveto one of" said arms, and means actuated by the movement of the movablemember for moving the other arm and shifting the spring to oppositesides of the pivot of the first arm.

7. Valve actuating mechanism for Windshield cleaners having a cylinder,a member adapted to be reciprocated in said cylinder by differentialpressure, and means for connecting said cylinder to a source of suction,said valve actuating mechanism comprising a shif'table valve, a pair ofpivoted yokes mounted in said cylinder, said yokes having their pivotsarranged adjacent each other and their outer ends remote from eachother, a tension spring secured to each of said yokes adjacent the outerends of the yokes, means for operatively connecting said valve to one ofsaid yokes, and means actuated by the reciprocation of said member formoving the outer end of the other yoke and shifting the spring toopposite sides of the pivot of the first yoke.

8. Valve actuating mechanism for Windshield cleaners having a cylinder.a member adapted to be reciprocated in said cylinder by differentialpressure, and means for conel necting said cylinder to a source ofsuction, said valve actuating mechanism comprising a shiftable valveadapted to establish communication between either end of said cylinarmspivotally mounted on said supporting member mounted in said cylinder, apair of arms pivotally mounted on said suppporting member, said armshaving their pivots arranged adjacent each other and their outer endsremote from each other, a tension spring connected to each of said armsadjacent its outer end, means for operatively connecting said valve toone of said arms, and means operable by the reciprocation of saidmovable member for moving the outer end of the other arm and shiftingthe spring to opposite sides of the pivot of the first arm for actuatingsaid arm and its associated valve.

9. Valve mechanism for windshield cleaners having a cylinder, a memberadapted to be reciprocated in said cylinder by differential pressure,and means for connecting said cylinder to a source of suction, saidvalve mechanism comprising a valve adapted to place either end of saidcylinder in coinmunication with the source of suction, a supportingmember mounted in said cylinder, said supporting member being providedwith a pair of substantially parallel arms, a pair of yokes pivotallymounted on said arms, said pivots being arranged adjacent to each otherand the outer ends of said yokes being arranged remote from each other,a spring having one end secured to each of said yokes adjacent its outerend, means for operatively connecting said valve to one of said yokes,and means operated by the reciprocation of the movable member for movinthe outer end of the other yoke and shifting the springr to oppositesides of the pivot of the first yoke.

10. Valve actuating mechanism for windshield cleaners having a cylinder,a member adapted to be reciprocated in said cylinder by differentialpressure, and means for connecting said cylinder t0 a source of suction,said valve mechanism comprising a shiftable valve adapted to connecteither end of said cylinder to a source of suction, a supporting membermounted in said cylinder, said supporting member being provided with apair of substantially parallel arms having offset ends, a pair of yokespivotally mounted on opposite sides of said arms and extending inopposite directions, a spring having one end connected to each of saidyokes adjacent the outer ends of the yokes, means for operativelyconnecting said valve to one of said yokes, and means for moving theouter end of the other yoke and shifting said spring to opposite sidesof the pivot of thefirsti yoke.

11. Valve mechanism for Windshieldy cleaners having a cylinder, amovable member mounted in said cylinder, and means for connecting saidcylinder to a sourceoil suction, said valve mechanism comprising ashiftable valve adapted to place either end of said cylinder incommunication with the source of suction, a supporting member mounted insaid cylinder, said supporting member being provided with a pair of sub-Stantially parallel arms having offset ends, the opposite endsV beingprovided with notches, yokes pivotally mounted in said notches andextending in opposite directions,

a tension spring connected to said yokes adjacent their outer ends,means for operatively connecting said valve to one of said yokes, andmeans operated by the movement ot' said member for moving the outer endof the other yoke and shifting the spring to opposite sides of the pivotof the trst yoke.

12. Valve mechanism for Windshield cleaners having a cylinder, a movablemember mounted in said cylinder, and means for connecting said cylinderto a source of suction, said valve mechanism comprising a shiftablevalve adapted to place either end of said cylinder in communicationvvith the source of suction, a supporting member mounted in saidcylinder', said supporting member being provided with a pair osubstantially' parallel arms having offset ends, the offset ends beingprovided with notches, yokes pivotally mounted insaid notches andextending in opposite directions, a tension spring connected to saidyokes adjacent their outer ends, means for operatively connecting one ofsaid yokes to said valve, means operated by the movement of said memberfor moving the outer end of the other yoke and shifting the spring toopposite sides of the pivot of the first yoke, and means carried by thesaid supporting member to engage the first voke to limit its movement.

13. Valve mechanism for windshield cleaners having a substantiallyair-tight casing, an actuating member mounted in'said casing and adaptedto be actuated by differential pressure, means for connecting saidcasing to a source of suction, said valve mechanism comprising ashiftable valve adapted to place the interior of said casing 'onopposite sides or' said member in coniniunication with the source ofsuction, a pair of pivoted arms mounted in the casing, said arms havingtheir pivots arranged adjacent each other andtheir outer ends remotefrom each other, means for operatively connect-ing said valve to one ofsaid arms, a tension spring secured to each of said arms adjacent theouter ends of said arms, and means operable by the movement. of said actuating member to move `the outer end of the other arm and shift saidspring to opposite sides of the pivot of the first arm.

14. AA motor for windshield cleaners comprising a cylinder having arelatively large opening therein through which access may pair ofpassages, one of Which is open to the gis atmosphere, a conduitconnecting the other passage to a source of vacuum production, means forsecurindg'said closure plate in position over said opening, a piston insaid cylinder adapted to be reciprocated by differential pressure Withinthe cylinder, valve seats adjacent each of said passages bored in saidclosure plate, valves cooperating with said seats, valve actuatingmechanism carried on the inner side of said closure plate, and meansoperated by the movement of the piston for controlling said valve'factuating mechanism to alternately place each end of said cylinder incommunication with said conduit and the opposite end in communicationWith the atmosphere. f

16. A motor for Windshield cleaners comprising a cylinder having arelatively large opening therein through which access may be had to theinterior of the cylinder, a closure plate adapted to be secured inposition over said opening, said closure plate being provided with apair of passages, one of which is open to the atmosphere, a conduitconnecting thc other passage to a source of suction, a manually operablecontrol valve for controlling said passage connected to said conduit, apiston in said cylinder, valve seats formed in each of said passages insaid closure plate, valves cooperating With said seats, elasticallycontrolled valve actuating mechanism carried on the inner side of saidclosure plate and adapted to be Y.locked in each of tWo positionsagainst the yresistance of the said elastic means, and lmeans operatedby the movement of the piston for shifting the said valve actuatingr.mechanism whereby said elastic means will become eil'ective` to.. shiftthe said valves from one position to.. their opposite position.

17. A motor for windshield cleaners comprising a cylinder having arelatively large opening therein through which access may be had to theinterior of the cylinder, a closure plate adapted to be secured inposition over said opening, said closure plate bein rovided with a pairof passages, one of `w ich is open to the atmosphere, a conduitconnecting the other passage to a source of suction, valve mechanism forcontrolling said passages, a piston in said cylinder, valve seats formedin each of said passages in said closure plate, said valve mechanismcooperating with said seats, elastic means for controlling the movementof said valve mechanism whereby said valve mechanism will be held in itsrespective limits of movement, under tension, and means operated by themovement of the piston for shiftin the said elastically controlled meansWherey to operate the valve.

18. A motor for Windshield cleaners, comprising a substantiallyair-tight casing having a relatively large opening therein through whichaccess may be had to the interior of said casing, a closure plateadapted to be secured in position over said opening, said closure platebeing provided With a pair of passages, one of which is open to theatmosphere, a conduit connected to the other passage,an actuating membermounted in said casing and adapted to be operated by diii'erentialpressure, valve mechanism to control the connection ot said passages andsaid casing, valve actuating mechanism carried on the inner side of saidclosure plate, and means controlled by the operation of said actuatingmember to move said valve actuating mechanism, whereby said valvemechanism is shifted to alternately place said casing on opposite sidesof said actuating member in communication with said conduit and theatmosphere.

In testimony whereof, I affix my signature in the presence of twowitnesses.

WILLIAM M. FOLBERTH. lVitnesses W. F. CHAPIN, HERMA-N G. LEHR.

Certificate of Correction.

It is herehy certified that in Reissue LetterS laicut Nu lz'tuu" gruntedIlecelnher 5, 1922`r upon the upplimitiou of lVilliaIn Ni. ["ullnrth`ul' ("lmvldnll` Ohio. assignur lo The Folherlh Aute 5pm-hilly (bmp-un),ol (llvwluiul. Ohio. n Corporation of ()hi(' for :in imprm'muent. in\`\"inr,lshivhl Lllmuufi'sl" un l-rrur appt-,urs in the printedspmifirutinn requiring (-m'rcctiun :iul fullnws.: lugv 1. liiu- 122%,

claim 8, strike out the words arms pimtally mounted un Awill suppnrtinginseit instnd the syllable and words der mu? t/e www@ of mation, a,mp/o/fvfif/,- and that the said Letters Patent should he rczld withthib` mrruuliou thvreiu that the same may conform t0 the record of thecase in the Patent Olce.

Signed and sealed this 9th day of January, A. D., 1923.

[SEAL] KARL FENNING,

Acting Commissioner of Patents.

